From 04b9d688f8ed55e3d3bb35d912dec9a9702fd399 Mon Sep 17 00:00:00 2001
From: NIC619 <twedusuck@gmail.com>
Date: Tue, 17 Dec 2019 19:09:15 +0800
Subject: [PATCH] Add newsfragment

---
 newsfragments/387.bugfix.rst | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 newsfragments/387.bugfix.rst

diff --git a/newsfragments/387.bugfix.rst b/newsfragments/387.bugfix.rst
new file mode 100644
index 00000000..0ba3f07c
--- /dev/null
+++ b/newsfragments/387.bugfix.rst
@@ -0,0 +1 @@
+Store peer ids in ``set`` instead of ``list`` and check if peer id exists in ``dict`` before accessing to prevent ``KeyError``.
\ No newline at end of file